Liverpool manager Jurgen Klopp has played down Villarreal's celebrations at the end of their Europa League semi-final first leg at El Madrigal last week.
Adrian Lopez scored the only goal of the game in the 92nd minute to put the Yellow Submarine in control of the tie, sparking big celebrations both on the pitch and on the sidelines, where manager Marcelino raced onto the field.
However, Villarreal must now defend their 1-0 lead at Anfield in the second leg tomorrow night, and Klopp warned that the tie is far from over.
"They scored a goal in the last minute so if they hadn't celebrated something would have been really wrong," he told reporters.
"The only thing I thought in this moment was 'half time'. Nothing happened. They have to come to Anfield.
"I am still feeling this, so the feeling is we are halfway through and I know how difficult it is. I sense the chance more than I am afraid of something - so let's try."
Liverpool have not reached the final of Europe's second-tier competition since 2001.
